The General Electric WB27T10821 Oven Relay Board Assembly is an essential electrical part that manages power distribution to key oven functions such as heating elements, temperature regulation, and cooking cycles. It works by receiving signals from the main control system and activating the appropriate relays to control the flow of electricity where needed. This helps the oven operate efficiently and maintain proper cooking temperatures. Replacing a faulty relay board can restore normal operation, improve heating consistency, and reduce interruptions during everyday cooking tasks.